Abstract: A valve for an aerosol container has a valve plate adapted to close an axial end of the container, a valve subassembly having at least one dispensing element, a seal ring, and a compression spring, and a valve holder containing the valve subassembly and having an axially open assembly hole through which the valve subassembly can pass. A cover closes the assembly hole and is formed with an axially throughgoing cover hole through which the dispensing element projects and with which the dispensing element forms an annular and axially extending passage. A seal ring surrounds the dispensing element and is engaged between the holder and the cover. A spring biases the dispensing element axially outward against the seal ring and presses an axial outer face of the seal ring against the axially inner face of the cover. Passages extend axially between an interior of the container and the seal ring.

Abstract: An aerosol container has a mouth centered on an axis. A plastic valve plate is fitted to and tightly attached to the mouth and has a disk formed with an outlet centered on the axis. An outlet valve is carried on the valve plate and has a housing holding a movable valve element. A rigid extension is integrally formed on the disk around the hole, projects axially into the container, and forms a cavity in which the housing of the valve is fitted. A seal is fixed in the cavity between the housing and a surface of the extension forming the cavity.

Abstract: A plurality of cup-shaped workpieces are anodized by first securing each of them in a downwardly open position on an electrically conductive and flat workpiece frame that is then inverted such that the workpieces are open upward and lowered into a body of anodizing liquid in a treatment bath until the workpieces are wholly immersed and the frame is in contact with a horizontal rail. Thereafter the frame is moved horizontally while wholly immersed in the anodizing liquid while electricity flows between the rail and a cathode immersed in the bath below the workpieces such the liquid anodizes surfaces of the workpieces. The frame is raised out of the body of liquid with the workpieces open upward, and, while the workpieces are still above the body of liquid, inverting the frame and the workpieces so that the workpieces are open downward and any treatment liquid drains downward into the bath.

Abstract: A pressure regulating valve reduces the increased internal pressure in an aerosol spray can, filled with compressed gas, to a working pressure level for a spray valve (12). A regulating piston (52) is kept in equilibrium by a restoring force, and a sealing point (66, 68) is provided, which is closed at a pressure in the pressure regulation chamber (84) that is above the regulated pressure level. To prevent the precision of regulation from being adulterated by the decreasing internal pressure of the can as its contents are progressively withdrawn, a sealing means (86, 66; 67) is proposed, which seals off one free end of the piston (52, 74) from the internal pressure of the can and the regulated pressure. The variable internal pressure of the can is therefore no longer able to act on any axial face of the piston (52), and despite what may be a smaller piston face area, the precision of regulation is improved.

Abstract: The spray can has a valve disk (12) with a valve, which valve disk is formed with a valve dome (16) and a fastening collar (18) surrounding it at a radial intermediate distance. The valve is actuated by pushing down a rotatable spray head (22) seated on a tappet (20). For obtaining turning stops for an actuating position and a closing position without taking special steps on the valve disk (12) or can body (10), it is provided that a stop ring (30) is arranged, fixed against relative rotation, in the annular space between the valve dome (16) and the collar (18). For being adaptable to materials of different thickness of the valve disk (12), it is formed with lamellas (35) at the outer circumference, is pushed with press fit into the collar (18) and has a cam track (36) with at least one recess extending along the circumference. The spray head (22) is formed or connected with at least one cam (46, 48). It acts together with turning stop faces (56) on the stop ring (30).

Abstract: For a pressure reduction, an aerosol spray can filled with a compressed pressure gas requires, upstream of its spray valve (14), a pressure regulation valve (10) with a closing point (28). In known embodiment types a flow occurs around the outside of the pressure reduction valve, which requires a complicated housing structure. It is therefore proposed that the connection between the closing point (28) and the spray valve (14) take place via a central bore (58) in the piston (22) of the pressure reduction valve (10), preferably without a flow through the pressure chamber (26), but instead past the latter. The simple construction is advantageous, with which it is also possible to provide easy access to the piston (22) from the outside in order to maintain it in its opened position for easier filling under pressure.

Abstract: A mounting cup for aerosol valves comprising a cupola member having an annular base, means provided said cupola for receiving an aerosol valve, a cylindrical shoulder integral at its bottom edge with the base of said cupola member and concentric with the side of said cupola member so as to form an annular space between said cupola member and said annular shoulder, a ring collar integral with the top edge of said cylindrical shoulder, the peripheral edge of said collar being downwardly curved to define an annular channel, a groove at the circumference of said cylindrical shoulder formed by an inwardly arched portion of the wall of said cylindrical shoulder, said groove being positioned substantially opposite said downwardly curved portion of said ring for receipt therebetween of a ring packing.